linux-kernel - [PATCH v2] interconnect: qcom: qcs404: Remove GPU and display RPM IDs

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Date:   Wed, 18 Nov 2020 13:10:44 +0200
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     mdtipton@...eaurora.org, bjorn.andersson@...aro.org,
        linux-pm@...r.kernel.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        georgi.djakov@...aro.org
Subject: [PATCH v2] interconnect: qcom: qcs404: Remove GPU and display RPM IDs

The following errors are noticed during boot on a QCS404 board:
[    2.926647] qcom_icc_rpm_smd_send mas 6 error -6
[    2.934573] qcom_icc_rpm_smd_send mas 8 error -6

These errors show when we try to configure the GPU and display nodes.
Since these particular nodes aren't supported on RPM and are purely
local, we should just change their mas_rpm_id to -1 to avoid any
requests being sent for these master IDs.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---

v2:
* Keep the nodes and just set the IDs to -1, as suggested by Mike.

v1: http://lore.kernel.org/r/20201111100734.307-1-georgi.djakov@linaro.org

 drivers/interconnect/qcom/qcs404.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/interconnect/qcom/qcs404.c b/drivers/interconnect/qcom/qcs404.c
index d4769a5ea182..9820709b43db 100644
--- a/drivers/interconnect/qcom/qcs404.c
+++ b/drivers/interconnect/qcom/qcs404.c
@@ -157,8 +157,8 @@ struct qcom_icc_desc {
 	}
 
 DEFINE_QNODE(mas_apps_proc, QCS404_MASTER_AMPSS_M0, 8, 0, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
-DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, 6, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
-DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, 8, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
 DEFINE_QNODE(mas_snoc_bimc_1, QCS404_SNOC_BIMC_1_MAS, 8, 76, -1, QCS404_SLAVE_EBI_CH0);
 DEFINE_QNODE(mas_tcu_0, QCS404_MASTER_TCU_0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
 DEFINE_QNODE(mas_spdm, QCS404_MASTER_SPDM, 4, -1, -1, QCS404_PNOC_INT_3);